8-bit MicrocontrollersのトピックDRM104 SD Card Reader

DRM104 SD Card Reader

bkohan — Thu, 14 May 2009 03:37:14 GMT

I see several people have been experimenting with the JM60 SD card reader App. Has anyone got it to work? On my DEMOJM60 it hangs during the SD card init. I can see Data to the card and data from the card, but it eventually gets gets hung-up waiting for SPI data from the card. Any ideas?

Thanks,

B.K.

Re: DRM104 SD Card Reader

mylim — Sun, 15 Nov 2009 17:26:40 GMT

Hi BK,

did you set your set your SPCLK to 375kbps when init?

also u need to generate min 75 clk pulse b4 SS asserted and 16 after at un-asserted state follow by sending reset cmd and keep repeating this process until you see the idle bit = 0.

Regards,